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  • Landline: +91 - 022-6659 1540

Are you looking for a carbon steel plain flange manufacturer in India? Contact us, Armech Alloy


Stainless Steel Plate Flanges



Stainless steel plate flanges specification

Size Face Other Name Of ASME B16.5 Plate Flanges
  • 1/2" to 24"
  • PN 2.5 - PN 400
  • DN15 - DN1200
  • Flat Face
  • Plain flange
  • Flat flange
Plate Flange Types Thickness Plain Flange code and standard
  • Weld Neck Plate Flange
  • Slip On Plate Flange
  • Blind Plate Flanges
  • Socket Weld Plate Flanges
  • Lap Joint Plate Flanges
  • Long Weld Neck Plate Flanges
  • Threaded Plate Flange
  • SCH 20
  • SCH 40
  • SCH 80
  • SCH 100
  • SCH 120
  • SCH 160
  • ASME B16.5
  • MSS SP-44
  • EN 1092-1
  • AWS D1.1
Manufacturing Process Advantages of SS Plate Flanges Surface
  • Cast
  • Plate
  • Forged
  • Strong hold
  • Versatility
  • Easy Installation
  • Precise Flawless Finish
  • Durability
  • Cost Effective
  • Safe Work Environment
  • Grooved surface
  • Convex surfaces
  • Ring joint surface
  • Flat surfaces
  • Concave and convex surfaces
Disadvantages of Plate Flanges For Welding Application Buying Tips
  • Limited Sizing Range
  • Welding Necessity
  • Price Variance
  • Nuclear power
  • Petrochemical plants
  • Industrial piping connection
  • Refinery industry
  • Gas & Oil applications
  • Size
  • End Type
  • Thickness
  • Materials
  • O.D.
  • Length
  • Mass
  • Pressure Rating
  • Tested
  • Style
  • Type
Bolt Hole Services Inspection Plan
4 To 24
  • Coating
  • Marking tagging
  • Polishing
  • Beveling end
  • Cutting
  • MTR certification
  • PMI test
  • Visual inspection
  • Impact test
  • Hardness test
  • Tensile test
  • Material inspection
Machine Production Process Operating temperature range
  • Pushing machine
  • Press machine
  • Electric bevelling machine
  • Bending machine
  • Sand-blasting machine
  • Raw Material
  • Inspection
  • Cutting
  • Forging
  • Heat Treatment
  • Forging Rolling
  • Final Inspection
  • Rust Prevention
  • Marking
  • Heat Number
  • Packaging
  • -10°C - 300°C
Maximum Operating Pressure Pressure Class Manufacturing Origin & Standards
16 bar at up to 200°C
  • Class 150
  • Class 300
  • Class 600
  • Class 900
  • Class 1500
  • Class 2500
  • Ghost - Russia
  • MSS SP44 - USA
  • DIN- Germany
  • JIS - Japan
  • UNI 2276/ 6091 - Italy
  • AWWA - USA
  • ANSI B16.5 - USA
  • API-605 - USA
  • PN 10 to PN400- Europe
  • BS 10- Australia and UK
  • BS EN 1092-1 - Europe
  • ASME B16.5- USA
Markings Method Coating Machining Way
  • Manufacturer logo
  • Size
  • Grade
  • Heat Number
  • Pressure rating
  • Face type
  • Schedule
  • ASTM material
  • Country origin
  • Yellow paint
  • Hot dip galvanized
  • Anti-rust oil
  • Oil black paint
  • Zinc plated
  • Heat treatment
  • Forming
  • Material selection
  • Quality control
  • Forging
  • Machining
  • Surface finish
  • Material cutting
  • Shaping
  • Inspection


Plate flange price

As a supplier, only here will you get flat flange and CS plate flanges for sale at a lower rate; order online to save 10% on cost

Plate flange price

(Grade : F316L, Face : FF, SCH : 40, Class 150) Price per piece in US Dollar

  • 3/4 Inch
  • 1/2 Inch
  • 1 Inch
  • 1 1/2 Inch
  • 1 3/4 Inch
  • 2 Inch
  • 2 1/2 Inch
  • 2 3/4 Inch
  • 3 Inch
  • US $1.03
  • US $1.44
  • US $2.15
  • US $2.81
  • US $3.60
  • US $4.29
  • US $5.24
  • US $6.40
  • US $7.35


Find complete details about the welding process of steel plate flanges as per ASME B16.5



Welding process of PN16 plate flange

Welding process of PN16 plate flange


Get a mill test report when purchasing hastelloy c276 loose plate flange and ASTM A105 plain end flange from a stockist in Mumbai


Types Of ASME B16.5 plate flanges

Carbon steel plain flange

Carbon steel plain flange

Flat flange

Flat flange

CS plate flanges

CS plate flanges

FF flange

FF flange

Plain end flange

Plain end flange

Plain face flange

Plain face flange

Loose plate flange

Loose plate flange

Flat face blind flange

Flat face blind flange

Flat welding flange

Flat welding flange

Blank flange plate

Blank flange plate

Plain face flange

Plain face flange

Flat face threaded flange

Flat face threaded flange

PN16 plate flange

PN16 plate flange

Orifice plate flanges

Orifice plate flanges

Flat face flange

Flat face flange



Discover the installation benefits of ASME SA182 F304 FF flange, and ASME B16.5 plate flange dimensions & weight chart in KG.


Installation benefits of carbon steel plain flange

Installation benefits of carbon steel plain flange


Stainless steel plate flanges dimensions

Stainless steel plate flanges dimensions
Size Outer Diameter # B.H. Thickness Inner Diameter Ø B.H.C. Ø B.H.
1/2 3.5 4 0.5 0.88 2.38 0.63
3/4 3.88 4 0.5 1.09 2.75 0.63
1 4.25 4 0.5 1.36 3.13 0.63
1 1/4 4.63 4 0.5 1.7 3.5 0.63
1 1/2 5 4 0.63 1.95 3.88 0.63
2 6 4 0.63 2.44 4.75 0.75
2 1/2 7 4 0.63 2.94 5.5 0.75
3 7.5 4 0.63 3.57 6 0.75
4 9 8 0.63 4.57 7.5 0.75
5 10 8 0.75 5.66 8.5 0.875
6 11 8 0.75 6.72 9.5 0.875
8 13.5 8 1 8.72 11.75 0.875
10 16 12 1 10.88 14.25 1
12 19 12 1 12.88 17 1


Pressure of carbon steel plain flange (bar)

Temperature in Celsius (°C)
Class Pressure
Class 150 Class 300 Class 600
-29 - 38 19.8 51.7 103.4
50 19.5 51.7 103.4
100 17.7 51.5 103.0
200 13.8 48.6 97.2
300 10.2 42.9 85.7
400 6.5 34.7 69.4
500 2.8 11.6 23.2


Plate flange weight

DN Weight In Kilogram
15 0,401
20 0,590
25 0,716
50 1,478
65 1,850
100 3,247
150 4,741
200 6,862
300 11,880
400 19,781
500 26,307
600 34,702
800 71,262
900 86,269
1000 101,340
1200 162,638


Material Of flat face flange

Super Duplex Plate Flanges Duplex Plate Flanges Titanium Plate Flanges
  • ASTM A182 F53
  • ASME SA182 Gr F55
  • A182 Grade F60
  • Super Duplex F61
  • ASTM A182 F51
  • ASTM A182 F44
  • Titanium Grade 2 : ASTM B381 UNS R50400
  • Titanium Grade 5 : ASTM B381 USN R56400
Inconel Plate Flanges Incoloy Plate Flanges Hastelloy Plate Flanges
  • Inconel 600 : ASTM B564 UNS N06600
  • Inconel 625 : ASTM B564 UNS N06625
  • Inconel 601 : ASTM B564 UNS N06601
  • Inconel 617 : ASTM B564 UNS N06617
  • Inconel 686 : ASTM B564 UNS N06686
  • Inconel 690 : ASTM B564 UNS N06690
  • Inconel 725 : ASTM B564 UNS N07725
  • 693, MA754, 751, 706, 718, 601GC, MA758, 783, X-750, 602CA, 603XL, 718SPF
  • Incoloy 800 : ASTM B407 UNS N08800
  • Incoloy 800H : ASTM B407 UNS N08810
  • Incoloy 800HT : ASTM B407 UNS N08811
  • Incoloy 825 : ASTM B407 UNS N08825
  • 903, 907, 945, 925, 926, 832, 330, 25-6HN, DS, 028, 020,909, 945X, MA956, 908, A-286, 27-7MO, 864, 890
  • Hastelloy C22 : ASTM B366 UNS N06022
  • Hastelloy C276 : ASTM B366 UNS N10276
  • Hastelloy C2000 : ASTM B366 UNS N06200
  • B-2, B, B-3, C, C-4, G-35, G-30, N, G-3, S, W, X
Monel Plate Flanges Nickel Alloy Plate Flanges Copper Nickel Plate Flanges
  • Monel 400 : ASTM B564 UNS N04400
  • Monel 401 : ASTM B564 UNS N04401
  • Monel K500 : ASTM B564 UNS N05500
  • Nickel Alloy 200 : ASTM B564 UNS N02200
  • Nickel Alloy 201 : ASTM B564 UNS N02201
  • Copper Nickel 90/10 : ASTM B151 UNS C70600
  • Copper Nickel 70/30 : ASTM B151 UNS C71500
Stainless Steel Plate Flanges Carbon Steel Plate Flanges Alloy Steel Plate Flanges
  • ASTM A105 plain end flange
  • ASTM A350 LF2 CL2 plain face flange
  • Low Temperature loose plate flange
  • A694 Gr F42 flat face blind flange
  • ASME SA694 Grade F46 flat welding flange
  • Carbon steel F56 plate flange
  • SA 694 F52 blank flange plate
  • Grade F60 plain face flange
  • High Yield F70 F65 flat face threaded flange
  • ASME SA694 plate flange
  • ASTM A182 F1 orifice plate flanges
  • A182 Gr F11 F5 plate flanges for welding
  • F9 Alloy Steel plate flange
  • SA 182 Grade plate flange
  • Alloy Steel F22 flat face flange
  • ASME SA182 F91 flat face weld neck flange


Bolts holes of slip on plate flange as per PN16

DN  Diameter Holes Bolt Wall Thickness
15 95 4 M12X50 14
20 105 4 M12X55 16
25 115 4 M12X55 16
32 140 4 M16X55 16
40 150 4 M16X55 16
50 165 4 M16X65 18
65 185 4 M16X65 18
80 200 8 M16X70 20
100 220 8 M16X70 20
125 250 8 M16X70 22
150 285 8 M20X70 22
200 340 12 M20X75 24


How to select flat flange?

  • Temperature Rating
  • Nominal Size
  • Connections
  • Design Pressure Class
  • Material & Grade
  • Bolt Hole Patterns
  • Face Finish


Flanged connection of FF flange

Three main ways to connect loose plate flange

  • Threading
  • Welding
  • Bolting